Manual drive for isolator without earthing, overline mounting, rotary motion NRA E-13.5 w.I 03-508

Manual drives for disconnectors – reliability and ease of operation

This manual drive, designed for disconnectors without an earthing switch, is a key element in medium-voltage disconnecting systems. Mounted above the line, it ensures safe and efficient circuit switching. The drive's rotational movement guarantees smooth and precise operation, and its robust construction ensures long-term reliability. It is an ideal solution for both professional installers and end-users who value simplicity and functionality.

Construction and application

The NRA E-13.5 w.I manual drive is designed to work with three-pole ALPAR series ON and OUN air disconnectors. It is used to manually control the disconnector, allowing it to be opened and closed. The drive is mounted using two M10 screws to the disconnector's drive mechanism. The design allows for easy integration with various installation configurations, both horizontal and vertical. The use of high-quality materials ensures resistance to weather conditions and long device life.

Key features and benefits

• Versatility: Compatible with ALPAR series ON and OUN disconnectors, simplifying component selection and replacement.
• Simple installation: Mounting with standard M10 screws speeds up installation and minimizes labor costs.
• Reliability: Robust construction guarantees long-term operation in various environmental conditions.
• Safety: Precise rotational movement ensures smooth circuit switching, minimizing the risk of damage or failure.
• Mechanical durability: Designed for 2000 Z/W (close/open) cycles, confirming its high resistance to wear.
• Corrosion resistance: Made of materials protected with a zinc coating, providing protection against atmospheric agents.
• Ease of use: Manual drive does not require additional power sources or complicated start-up procedures.

The NRA E-13.5 w.I manual drive is a proven element of electrical infrastructure, which, thanks to its simplicity and reliability, finds wide application in distribution networks and industrial customers. It enables safe and efficient circuit switching in situations requiring manual intervention or in places inaccessible to automatic control systems.